To evaluate the performances of the probabilistic forecasts provided by seasonal forecasting it is very common the use of skill scores. A skill score is normally defined as a ratio between a specific accuracy measure computed on the forecast and the same measure applied to a reference forecast.
        
      
     
  
    
    
    
      
      
    
    
      
      
        
          European Climatic Energy Mixes
        
      
     
  
    
    
    
      
      
    
    
      
      
        
          Sub-Seasonal to Seasonal Climate Prediction For Energy
        
      
     
  
    
    
    
      
      
    
    
      
      
        
          the Added Value of Seasonal Climate Forecasts for Integrated Risk Management Decisions
        
      
     
  
    
    
    
    
      
      
        
          European Provision Of Regional Impact Assessment on a Seasonal-to-decadal timescale
        
      
     
  
    
    
    
    
      
      
        
          European Provision Of Regional Impact Assessment on a Seasonal-to-decadal timescale